Tips:Until you get used to wearing the Posture Corrector, you may experience a little discomfort, especially in the armpit area. Begin wearing in 15 minute increments and increase duration based on comfort. Periodically tighten the straps to pull the shoulders further back until the shoulders are flat against the wall. Over time, with the help of muscle memory, your body will adopt the correct posture even without the corrector. . DEVELOP PROPER STRAIN YOURSELF AND MAINTAIN CONFIDENCE - Start by wearing our back straightener for 5-10 minutes a day and then increase the time to an hour or two at a time. After a while, you'll find that you're standing taller, looking healthier and feeling absolutely better - all by itself . INNOVATIVE DESIGN- Our trademarked design is orthopedically engineered to correct your posture in the most comfortable way for chest sizes from 30" to 43". Fully adjustable and breathable, you can even wear it under your clothes and go about your day pain-free. . Breathable Neoprene Material - We don't cut corners when it comes to quality. Our back brace features high quality durable stitching and is made from soft, breathable neoprene material without ever becoming uncomfortable or irritating your skin like most other cheaper posture correctors. . The Annex Brace Posture Corrector aims to relieve chronic back pain and make long hours of work or standing still a breeze. Correctly aligning your posture takes pressure off key areas, relieving back, neck, shoulder and collarbone pain. .